Diff: USBHostHID/USBHostMouse.cpp

Revision:

8:6463cd1964c0

Child:

9:7f9f64cf5ded

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHostHID/USBHostMouse.cpp	Fri Jan 31 13:45:07 2014 +0000
@@ -0,0 +1,175 @@
+#include "USBHostMouse.h"
+
+#ifdef _USB_DBG
+#define USB_DBG(...) do{fprintf(stderr,"[%s@%d] ",__PRETTY_FUNCTION__,__LINE__);fprintf(stderr,__VA_ARGS__);fprintf(stderr,"\n");} while(0);
+#define USB_DBG_HEX(A,B) debug_hex(A,B)
+void debug_hex(uint8_t* buf, int size);
+#else
+#define USB_DBG(...) while(0)
+#define USB_DBG_HEX(A,B) while(0)
+#endif
+
+#define USB_TEST_ASSERT(A) while(!(A)){fprintf(stderr,"\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);};
+#define USB_TEST_ASSERT_FALSE(A) USB_TEST_ASSERT(!(A))
+
+#define USB_INFO(...) do{fprintf(stderr,__VA_ARGS__);}while(0);
+
+USBHostMouse::USBHostMouse() {
+    host = USBHost::getHostInst();
+    init();
+}
+
+void USBHostMouse::init() {
+    dev = NULL;
+    int_in = NULL;
+    onUpdate = NULL;
+    onButtonUpdate = NULL;
+    onXUpdate = NULL;
+    onYUpdate = NULL;
+    onZUpdate = NULL;
+    report_id = 0;
+    dev_connected = false;
+    mouse_device_found = false;
+    mouse_intf = -1;
+    
+    buttons = 0;
+    x = 0;
+    y = 0;
+    z = 0;
+}
+
+bool USBHostMouse::connected() {
+    return dev_connected;
+}
+
+bool USBHostMouse::connect() {
+
+    if (dev_connected) {
+        return true;
+    }
+    
+    for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
+        if ((dev = host->getDevice(i)) != NULL) {
+
+            if(host->enumerate(dev, this))
+                break;
+            
+            if (mouse_device_found) {
+                
+                int_in = dev->getEndpoint(mouse_intf, INTERRUPT_ENDPOINT, IN);
+                USB_DBG("int_in=%p", int_in);
+                if (!int_in)
+                    break;
+                
+                USB_INFO("New Mouse device: VID:%04x PID:%04x [dev: %p - intf: %d]\n", dev->getVid(), dev->getPid(), dev, mouse_intf);
+                dev->setName("Mouse", mouse_intf);
+                host->registerDriver(dev, mouse_intf, this, &USBHostMouse::init);
+                
+                //int_in->attach(this, &USBHostMouse::rxHandler);
+                host->interruptRead(dev, int_in, report, int_in->getSize(), false);
+                
+                dev_connected = true;
+                return true;
+            }
+        }
+    }
+    init();
+    return false;
+}
+
+/*virtual*/ void USBHostMouse::setVidPid(uint16_t vid, uint16_t pid)
+{
+    USB_DBG("vid:%04x pid:%04x", vid, pid);
+    // we don't check VID/PID for mouse driver
+}
+
+/*virtual*/ bool USBHostMouse::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed
+{
+    USB_DBG("intf: %d class: %02x %02x %02x", intf_nb, intf_class, intf_subclass, intf_protocol);
+    if ((mouse_intf == -1) &&
+        (intf_class == HID_CLASS) &&
+        (intf_subclass == 0x01) &&
+        (intf_protocol == 0x02)) {
+        mouse_intf = intf_nb;
+        return true;
+    }
+    return false;
+}
+
+/*virtual*/ bool USBHostMouse::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
+{
+    USB_DBG("intf_nb=%d type=%d dir=%d", intf_nb, type, dir);
+
+    if (intf_nb == mouse_intf) {
+        if (type == INTERRUPT_ENDPOINT && dir == IN) {
+            mouse_device_found = true;
+            return true;
+        }
+    }
+    return false;
+}
+
+#if 0
+void USBHostMouse::setup() {
+    dev = host->getDevice(0);
+    if (dev->getClass() == HUB_CLASS) {
+        for(int i = 1; ; i++) {
+            dev = host->getDevice(i);
+            if (dev == NULL) {
+                break;
+            }
+            if (enumeration(dev)) {
+                break;
+            }
+        }
+        USB_TEST_ASSERT(ep_int_in);
+    } else {
+        ep_int_in = NULL;
+    }
+}
+
+bool USBHostMouse::enumeration(USBDeviceConnected* dev) {
+    // config descriptor
+    uint8_t desc[4];
+    int rc = host->controlRead(dev, 0x80, GET_DESCRIPTOR, 2<<8, 0, desc, 4);
+    USB_TEST_ASSERT(rc == USB_TYPE_OK);
+    USB_DBG_HEX(desc, 4);
+
+    int TotalLength = desc[2]|desc[3]<<8;
+    uint8_t* buf = new uint8_t[TotalLength];
+    rc = host->controlRead(dev, 0x80, GET_DESCRIPTOR, 2<<8, 0, buf, TotalLength);
+    USB_TEST_ASSERT(rc == USB_TYPE_OK);
+    //USB_DBG_HEX(buf, TotalLength);
+    bool found = false;
+    for(int i = 0; i < TotalLength; ) {
+        int Length = buf[i];
+        uint8_t DescriptorType = buf[i+1];
+        if (DescriptorType == 0x04) { // interface
+            InterfaceDescriptor* desc = reinterpret_cast<InterfaceDescriptor*>(buf+i);
+            if (desc->bInterfaceClass == 0x03) {
+                found = true;
+            }
+        } else if (DescriptorType == 0x05) { // endpoint
+            EndpointDescriptor* desc = reinterpret_cast<EndpointDescriptor*>(buf+i);
+            if (desc->bmAttributes == 0x03 &&
+                (desc->bEndpointAddress & 0x80)) { // interrupt in
+                ep_int_in = new USBEndpoint;
+                ep_int_in->setDevice(dev);
+                ep_int_in->setAddress(desc->bEndpointAddress);
+                ep_int_in->setSize(desc->wMaxPacketSize);
+            }
+        }
+        USB_DBG_HEX(buf+i, Length);
+        i += Length;
+    }
+    delete[] buf;
+    if (!found) {
+        return false;
+    }
+    int config = 1;
+    host->controlWrite(dev, 0x00, SET_CONFIGURATION, config, 0, NULL, 0);
+    wait_ms(100);
+    return true;
+}
+#endif
+